Thank you very much for this, Idris. It works nicely in the sample file you
sent. But it goes off again once you add \setupdirections[bidi=global].
Consider the following:
==========
\setuppapersize[A6]
\definefontfamily[mainface][serif][ALMFixed][%
features=arabic,
range=arabic,
]
\setupbodyfont [mainface]
\starttext \showframe
\setupdirections[bidi=global]
\setupthinrules[color=white]
\setupwhitespace[big]
\section{Incorrect}
\startlinenumbering
\startalignment[r2l]
هذه رسالة لطيفة ألفها العالم الكبير الفهامة النحرير.
هذه رسالة جامعة مانعة ألفها الشيخ الفاضل...
\thinrule
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque molestie
dictum quam non congue. Integer ut dolor vel mi vestibulum molestie vel et
nulla.
\stopalignment
\stoplinenumbering
\section{Correct}
\startalignment[r2l]
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque molestie
dictum quam non congue. Integer ut dolor vel mi vestibulum molestie vel et
nulla.
\stopalignment
\stoptext
=============
With many thanks, and salam,
Talal
> On 2 Aug 2015, at 12:51, Idris Samawi Hamid ادريس سماوي حامد
> <idris.ha...@colostate.edu> wrote:
>
> On Sun, 02 Aug 2015 03:24:12 -0600, tala...@fastmail.fm <tala...@fastmail.fm>
> wrote:
>
>> Thanks for that, Wolfgang. I can only hope that, as the culprit is known, it
>> can be apprehended!
>
> Talal, here is a barbarous workaround using \thinrule:
>
> ======================
> \setuppapersize[A6]
> \starttext \showframe
>
> \setupthinrules[color=white]
> \setupwhitespace[big]
>
> \section{Incorrect}
> \startlinenumbering
> \startalignment[r2l]
> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque
> molestie dictum quam non congue. Integer ut dolor vel mi vestibulum molestie
> vel et nulla.\thinrule
>
> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque
> molestie dictum quam non congue. Integer ut dolor vel mi vestibulum molestie
> vel et nulla.
> \stopalignment
> \stoplinenumbering
>
> \section{Correct}
> \startalignment[r2l]
> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Pellentesque
> molestie dictum quam non congue. Integer ut dolor vel mi vestibulum molestie
> vel et nulla.
> \stopalignment
>
> \stoptext
> ======================
>
> This effectively hides the problem. Unfortunately it is apparently not
> straightforward to invoke the \thinrule automatically at the end of every
> paragraph [see the other thread with Alan].
>
> Best wishes
> Idris
> --
> Idris Samawi Hamid
> Professor of Philosophy
> Colorado State University
> Fort Collins, CO 80523
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